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Example of mucus producing cells of the larynx. Coronal histologic section through human false vocal fold at 20x magnification. False vocal fold sections were stained with Alcian Blue/Periodic Acid Schiff (AB/PAS). AB/PAS is a special stain commonly used for the evaluation of mucins. Mucins are stained as either blue or magenta. (A) Positive staining around the cell membrane of apical epithelial cells of the false vocal fold. (B) Positive staining of cells of a submucosal gland.
